Improvement in thill-coupling



VGEORGE'-rnrrlsorlniror NEWYQRL N. Y.

Letters Patent No. 75,698, dated .March 17, 1868.

I IMPROVEMENT IN THILL-COUPLING.

ttlg Srlgetule referat tuy im tiges: Enters atmt ant mating gaat tf thestmt.

T0 WHOM IT MAY CONCERN:

Be it known that I, GEORGE PENNOYER, of the city, county, and State ofNew York, have invented a new and useful Improvement in NoiselessDevicesfor Coupling Thills or Shafts on to carriages, and a novel mannerof constructing the sume. v

My improvement consists of a double solid cone, permanently attached toand forming a part of the axleclip; two solid conic caps to form a jointwith the cones; ascrew-bolt for-a special purpose; and a close `orsecret joint; andI do hereby declare that the following is a full,clear, and exact description of my improvement, reference being had tothe annexed drawings, which make a part of these specica'tions.

`,Figure 1 is a. perspective view of an axle-clip with the double coneattached.

Figure 2, a. drawing of the thill-strap and the solid comic-caps A A,screw-bolt, and close joint C.

Figure 3, the several parts combined as when in use.

To enable others more fully to understand, manufacture, and use myinvention, I will now describe it in detail,

To construct my improved coupling, I provide a suicient quantity ofsuitable iron Aor steel, from which IIk form the clip'and double cone inone solid piece, (see iig. 1.) I then form the cone-caps upon separatepieces, which are to be rights and lefts, and -one of these pieces is tobe much broader, longer, and therefore stronger -than the other. Thispiece forms the greater and stronger section or portion ofthethill-strap, or that portion that is necessary to be bolted to theshaft, and is to be placed upon the outer side or next to the wheel, inorder to receive the greater strain when turning the carriage. Thisportion of the strap is narrowed-for a. few inches back from the cap, atthe terminus of which narrowing 'is formed the socket or female portionof thesecret joint C. This socket is formed by boring down to a properdepth from the inner or upper side of` the strap. i The `smaller orinner section of the strap is formed with the male por-tion ofthe hingeupon theuninished endfand is A fittedv in such a ymanner as to form acapped or closed joint, the working of which is not seen from eitherside of the strap when the same is bolted to the shaft or thill, asshown at g. 3; the two parts of this joint being fitted and rivetedtogether, and the two sections of the strap properly fitted to'eachother, with the screw-bolt B, which passes' through the smaller or innersection of the strap, and is threaded into the outer or stronger portionof the strap, thereby avoiding the use of a nut,'the objectof this boltbeing to strongly hold and fasten the cap upon the cones when in use.These caps are bored and fitted to the cones in such a manner as to beuscdwith or without packing,"aslmay be desired. Thus endstheconstruction, all vof'which will be more readily Q understood byreferring to the drawings.

The advantage andl operation of my invention are, that the clip anddouble solid cone being made of one piece of metal insures extrastrength and utility; the taper of the cones'with the corresponding capcreates a constant-bearing, which prevents the usual Irattling noise;the bolt holds the cap strongly upon the cones, and facilitates thecoupling and uncoupling of the shafts to the carriage; the cone-capsbeing solid, they exclude dust and dirt, and form boxes for oil orpacking; tlie capped onclosedjoiut is strong, easy of construction, andgiveseleganceof finish.

What I claim as my invention, and desire to secure by Letters'Patent, is

1. The double solid cone', in combination with the clip, fig. l.u

.2. The solid conic caps 4A A, in combination with-.the solid cones.

3. The screw-bolt, in the position and for the purposes described.v

4. The cappedjoint in constructing a. carriage-coupling, as and for thepurposes described.

GEO. PENNOYER. Witnesses:

J. M. Kuur,

H. P. RuYNoLDs.

